//
//  UINavigationController+XM.h
//  XMNavigationController
//
//  Created by Ce Liu on 2018/6/6.
//  Copyright © 2018年 Ce Liu. All rights reserved.
//

#import <UIKit/UIKit.h>

// Lib
#import <objc/runtime.h>
#import <objc/message.h>

@interface UINavigationController (XM)

@property (nonatomic, copy) NSString *backImage;

@end
